Perry Ning
  • Male
  • Birmingham, AL
  • United States
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Perry Ning's Groups

Perry Ning's Discussions

Sizing A Ground Heat Exchanger for Installation
1 Reply

Ground Heat Exchanger (GHE) is the key to the efficiency of a Ground Source Heat Pump (GSHP). However, GHE is not standardized as other parts of the GSHP. It is basically a bunch of tubes that need…Continue

Started this discussion. Last reply by Bob Blanchette Sep 14, 2013.

What About DIY Geothermal Heat Exchangers for Heat Pumps?
2 Replies

     Many of our pros here are also DIY experts. You may have done or plan to do some geothermal projects. Do you favor a contractor or yourself for the actually installation?     To initiate the…Continue

Tags: Ground, heat, exchanger, GHE, Pumps

Started this discussion. Last reply by Perry Ning Sep 14, 2013.

Cooling His Room With a Big Refrigerator - What is Wrong with That?
5 Replies

       It was very hot this July 4th for Peter when his room AC broke down.  Nothing taste better than a cold beer from the refrigerator.         The cool air from the fridge gave Peter a COOL idea.…Continue

Tags: energy, fridge, conversion, waste, heat.

Started this discussion. Last reply by Perry Ning Sep 14, 2013.

 

Perry Ning's Page

Latest Activity

David Kerrigan commented on Perry Ning's blog post Warnings About Portable Air Conditioners
"I agree with you here, but wanted to add the fact that a portable air conditioner can be utilized very effectively such as cooling your bedroom at night or home office during the day while keeping the rest of the windows in the house open. You would…"
Apr 2
Perry Ning replied to Andrew Vidal's discussion Looking for a good load calculation software in the group HVAC
"Hi John,     Very good Graphic Method.  With your permit, I would like to download your PDF to my website heatExch.com. Please leave me a reply here if I could do that.     Thanks,     Perry Ning, owner of…"
Sep 23, 2013
Perry Ning joined Allison A. Bailes III's group
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HVAC

HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements, and more. Since heating & cooling are such a big part of home energy use, understanding HVAC is critical.See More
Sep 23, 2013
Perry Ning's 3 discussions were featured
Sep 17, 2013
Bob Blanchette replied to Perry Ning's discussion Sizing A Ground Heat Exchanger for Installation
"Since the ground loop is the biggest cost of having Geo installed it's critical to get this right for quickest payback time vs. a conventional HVAC system. Too small of a loop and you won't get the rated EER from the unit, too big and you…"
Sep 14, 2013
Perry Ning replied to Perry Ning's discussion Cooling His Room With a Big Refrigerator - What is Wrong with That?
"You are right! Here are some more challenging questions. They may not be challenge enough for you, but your answers may help others. Thanks,  Perry http://homeenergypros.lbl.gov/forum/topics/sizing-a-ground-heat-exchanger-for-installation ???"
Sep 14, 2013
Perry Ning replied to Perry Ning's discussion What About DIY Geothermal Heat Exchangers for Heat Pumps?
"What about sizing?  I have write the basic steps to size a GHE.  It would be great if you can check me out and give some comment. http://homeenergypros.lbl.gov/forum/topics/sizing-a-ground-heat-exchanger-for-installation. Thanks,…"
Sep 14, 2013
Perry Ning posted a discussion

Sizing A Ground Heat Exchanger for Installation

Ground Heat Exchanger (GHE) is the key to the efficiency of a Ground Source Heat Pump (GSHP). However, GHE is not standardized as other parts of the GSHP. It is basically a bunch of tubes that need to be properly sized and burred in the ground. Improperly sized GHE can lead to chocked flow and higher pumping cost or stagnate flow and less heat transfer.Sizing methods and data of GHE are mostly…See More
Sep 14, 2013
Bob Blanchette replied to Perry Ning's discussion What About DIY Geothermal Heat Exchangers for Heat Pumps?
"Ground loop costs are the biggest expense of Geothermal. Doing the digging and installing the loop DIY sounds like a great way to cut installation costs."
Jul 14, 2013
Curt Kinder replied to Perry Ning's discussion Cooling His Room With a Big Refrigerator - What is Wrong with That?
"Oh please - that's a classic college-level thermodynamics question! That might be marginally effective if Peter shoved the fridge into an exterior doorway such that the hot coils were outside the room and airsealed the remaining gaps."
Jul 11, 2013
Perry Ning commented on Anna Jursik's blog post Public Art to Promote Energy Efficiency
"    Yes. Do something. Once people get into the action, they will actually enjoy it. I just had a lesser proposal to see if our expert here would favor a…"
Jul 11, 2013
Perry Ning posted a discussion

What About DIY Geothermal Heat Exchangers for Heat Pumps?

     Many of our pros here are also DIY experts. You may have done or plan to do some geothermal projects. Do you favor a contractor or yourself for the actually installation?     To initiate the discussion, heat pump performances are closely linked to the outdoor heat exchanger. A geothermal heat exchanger can boost the performances substantially because it is warmer than air in winter and cooler than air in summer. However, the installation by an outsider can be very costly.     To have the…See More
Jul 11, 2013
Bob Blanchette replied to Perry Ning's discussion Cooling His Room With a Big Refrigerator - What is Wrong with That?
"More heat comes out of the back/bottom than cooling comes out the front."
Jul 6, 2013
Perry Ning replied to Perry Ning's discussion Cooling His Room With a Big Refrigerator - What is Wrong with That?
"Very good.  Why the room got hot?"
Jul 6, 2013
Bob Blanchette replied to Perry Ning's discussion Cooling His Room With a Big Refrigerator - What is Wrong with That?
"Simple, the heat from the back/bottom of the fridge heated up the room. You can't "make cold", only move heat. Unless the condenser coil is outside of the room it will never work."
Jul 6, 2013
Perry Ning posted a discussion

Cooling His Room With a Big Refrigerator - What is Wrong with That?

       It was very hot this July 4th for Peter when his room AC broke down.  Nothing taste better than a cold beer from the refrigerator.         The cool air from the fridge gave Peter a COOL idea.  He sealed the whole room tight and kept the big fridge door wide open.           After an initial relief feeling, the room reached cooking temperature.       Could anybody tell Peter what is wrong?               Happy July 4th,         Perry from http://heatExch.comSee More
Jul 6, 2013

Profile Information

Company
heatExch.com
Professional Certification
Heat Exchanger Engineer
Professional Interests
Heat Exchanger
Heat Transfer
Home Energy
Air Conditioning
Heat Transfer Printing
Website URL
http://heatExch.com
Blog URL
http://heatExch.com/Latest/
Twitter ID
https://twitter.com/heatexch
Facebook Page
facebook.com/heatExchcentral
Pinterest Page
http://pinterest.com/perryning/boards/

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Perry Ning's Blog

Warnings About Portable Air Conditioners

Warnings About Portable Air Conditioners

Warning About Portable Air Conditioners

Here are some warnings about portable air conditioners to help you to be aware of their low energy efficiency rating when purchasing a new air conditioner. If you already have a portable air conditioner or if a portable air conditioners your only option to get some cooling,…

Continue

Posted on July 2, 2013 at 12:20pm — 4 Comments

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